Banks have not put all of their eggs in the TCH basket. There is another Bank Consortium around payments which I have not discussed: Paydiant has been working with 27 odd banks around a “Push Payments” pilot for last 2 yrs.
This question is very similar to the story above on EMV. The engineer in me recoils at the thought that a sophisticated technology (which decreases risk), would not be welcomed within a market. To understand WHY, you must answer the question: WHO benefits from the risk reduction? If your business is risk management, and someone takes risk away, what is your business?